About HDR and 32 bit stuff

[Mylenium]

[evrard] “- Why is HDR important? Who uses it?

Film, HD work, 3D animation. It simply contains more color information in terms of how the light really behaves. Therefore your footage will not degrade as much during color correction for instance.

[evrard] “- Is it possible to convert a 8 or 16 bpc footage into a 32 bpc one?”

Yes, but it won’t gain that extra fidelity.

[evrard] “- Or 32 bpc is all a matter of production (special camera)?”

Yes, it is. most HDR stuff is either scanned from chemical film (multi-exposure scan), rendered from 3D apps or doen with dedicated HDR cameras (still image).

Mylenium

[Pour Myl

[Sam Moulton]

watch this

https://www.totaltraining.net/gurulounge/aftereffects.asp

from Brian Maffitt

and it doesn’t even touch the possibilities with motion blur and other cool stuff

[Peter O’connell]

Imagine a photo of a person sitting in the shade of a tree with big puffy clouds in the background and in this image, being able to see accurate detail in the darkest shadows (say the person’s wrist watch) and also be able to see all the fine detail in the very very bright billows of the clouds. A JPEG can’t hold all that info, something has to get clipped out in a JPEG, either the watch or the bright part of the clouds has to go. A file that can hold from very dark to very bright info simultaneously is called a high dynamic range image. To truly appreciate the potential of HDR you should see what HDR images look like when they are motion blurred. Andrew kramer has a great tutorial about using camera raw files as HDR images in AE.

Good Luck
Pete

Thursday; May 25, 2006
1:55 AM

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